Home / 11,785.15-16,263.09-6,479.92

Finding the Fourth Proportional to 11,785.15, 16,263.09 and 6,479.92

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Solution

The fourth proportional to 11,785.15, 16,263.09 and 6,479.92 is: 8,942.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,785.15 : 16,263.09 = 6,479.92 : x
  2. Step 2: Convert to fraction form
    11,785.15/16,263.09 = 6,479.92/x
  3. Step 3: Cross multiply
    11,785.15x = 16,263.09 × 6,479.92
  4. Step 4: Simplify right side
    11,785.15x = 105,383,522.15
  5. Step 5: Solve for x
    x = 105,383,522.15/11,785.15
  6. Step 6: Final answer
    x = 8,942.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.